201221300 六、發明說明： 【發明所屬之技術領域】 本發明係關於藉由使喷射材碰撞被加工物之表面而進 行喷珠加工之喷珠加工裝置。 【先前技術】 於被加工物之粗面化、平滑化修飾、表面粗糙度調整、 倒角、去毛邊、端面加工（倒圓角）、去除鑄造品之皺摺 等表面處理之領域，採用有噴珠加工。又，近來，於使用 較小之喷射材之蝕刻等微細加工中亦採用噴珠加工。自設 置於喷珠加工至内之喷珠加工用噴嘴所喷射之喷射材及因 喷珠加工而產生之粉塵（以了，僅記作「粉塵」）雖被回 收至經由導管而連結之吸引手段（一般指集塵裝置）中， 但其一部分會附著於内壁面。於内壁面上，多配置有用以 自外。卩確5忍喷珠加工之狀況之窗，由於該窗上附著有噴射 材及粉塵而難以確認喷珠加工之狀況。又，噴射材及粉塵 於内壁面上逐漸堆積，當喷射材等之堆積量超過對内壁面 之附著力時會一下子落下。喷珠加工完成後之被加工物係 於喷珠加I室内杨附著於該被加工物上之噴射材及粉塵 之後取出至喷珠加工室夕卜’因此於取出時’ ^附著於喷珠 加工室之内壁面上之喷射材及粉塵落下，則喷射材及粉塵 會再次附著於被加工物上，使喷射材及粉塵漏出至喷珠加 工室外’對作業環境而言不佳。 作為防止噴射材附著於噴珠加工室之内壁面之方法， 201221300 k出一種喷珠加工裝置，其使壓墙入、m 文坠釉工虱供給源連結於噴珠 加工室之頂面’使由壓縮空氣供 工札世、··口你所產生之壓新於 噴珠加工裝置之内壁面流動（專利文獻u。該裝置中、，導 入至上述喷珠加X室内之壓縮空氣亦必需藉φ吸引手段進 行吸引’因此導致吸引手段大型化。 [先行技術文獻] [專利文獻] [專利文獻1]日本特開2001-3 34466號公報 【發明内容】 [發明所欲解決之問題] 鑒於以上情形，本發明以簡單之構造提供喷射材及粉 塵不會附著於喷珠加工室之内壁面之喷珠加工裝置。 [解決問題之技術手段] 本發明之喷珠加工裝置具備：喷珠加工室，其用以藉 由自設置於内部之喷珠加工用喷嘴對被加工物噴射喷射材 而進行噴珠加工；以及吸引手段，其用以對上述喷珠加工 室内進行吸引；上述喷珠加工室具備至少1個以上之外部 空氣吸引口，以便將外部空氣吸引至該喷珠加工室内，並 且使所吸引之外部空氣沿著該喷珠加工裝置之内壁面流 動。（第1發明） 又’於第1發明之噴珠加工裝置中’可於具備上述外 部空氣吸引口之上述喷珠加工室之外壁面側，配置用以將 外部空氣整流並吸引至上述喷珠加工室内之外部氣流整穿 4 201221300 構件。（第2發明） 於第2發明之喷珠加工裝置中，上述外部氣流整 構件可為兩端開口之中空狀構件，且可將其中—開口面 安裝於上述喷珠加卫室之外壁面，並與上述外部空氣吸引 口連接。（第3發明） 又’於第3發明之喷珠加卫裝置中，可使上述外部氣 流整流構件之與上述開σ面正交之方向之剖面為矩形。（第 4發明） 又，於第3 |明之喷珠加工裝置中，可使上述外部氣 =整流構件之與上述開口面正交之方向之剖面為折曲成〈 字狀或L字狀之形狀、或者彎曲成/字狀之形狀之任一者。 (第5發明） 又’於第1或第2發明之喷珠加工裝置中，可於上述 喷珠加工室内，配置將藉由上述外部空氣吸引口所吸引之 外部空氣引導為沿著内壁面流動之外部氣流引導構件。（第 6發明） 又’於第6發明之喷珠加工裝置中，上述外部氣流引 導構件可為板狀，其一端面固著於上述喷珠加工室内之頂 面及側壁面之至少任一者上，可使相對於固著有該外部氣 流引導構件之上述喷珠加工室之頂面及/或側壁面而正交之 縱剖面為矩形。（第7發明） 又’於第6發明之喷珠加工裝置中，上述外部氣流引 導構件可為板狀’其一端面固著於上述喷珠加工室之頂面 及壁面之至少任一者上，可使相對於固著有該外部氣流引 201221300 導構件之上述喷珠加工室之頂面及側壁面而正交之縱剖面 為折曲成〈字狀之形狀或彎曲成/字狀之形狀之任一者。 (第8發明） 又’於第7或第8發明之喷珠加工裝置中，可使上述 外部氣流引導構件、與固著有該外部氣流引導構件之内壁 面之導入外部氣流之側的内壁面所成之角度為9〇。以下。 (第9發明） 又’於第9發明之喷珠加工裝置中，可將上述外部氣 流引導構件配置成將藉由上述外部空氣吸引口所吸引之外 部空氣引導為沿著配置有上述外部空氣吸引口之内壁面。 (第1 〇發明） 又，於第6發明之喷珠加工裝置中，可於上述喷珠加 工室内，配置將該喷珠加工室之内部所產生之氣流引導為 沿著内壁面流動之内部氣流引導構件。（第丨丨發明） 又’於第11發明之喷珠加工裝置中，上述内部氣流引 導構件可為例如平坦面呈矩形之板狀，且可使該内部氣流 引導構件之平狀兩端面分別固著於上述噴珠加工室之側 面。（第12發明） 又，於帛12發明之喷珠加工裝置+，可相對於固著有 上述外部氣流引導構件之上述喷珠加工室之内壁面，使與 該内壁面正交之上述内部氣流引導構件之縱剖面為折曲成 〈子狀之形狀或彎曲成/字狀之形狀之任一者。（第13發 明） 又，於第η發明之喷珠加工襄置中，可使上述内部氣 6 201221300 二 =置於離開上述外部氣流引導構件且遠離上述 卜。P工虱吸引口之側之位置。（第14發明） 又’於第η發明之喷珠加工裝置中，上述内部 部Ϊ:與上述喷珠加工室之内壁之距離可為與靠近上述外 l氧吸引口之端面側相比，在遠離上述外部空氣吸弓丨口 之端面側為更窄。（第15發明） 又’於第6發明之喷珠加工裝置中，可於頂面安 上述外部氣流引導構件之情形時，於上述噴珠加工室: 壁面二在相較上述外部氣流引導構件之與固著於上述噴珠 至之頂内壁面之端為相反側之端更遠離上述外部空^ 吸引口的位置，配置逆流阻礙構件。（第16發明）1 又，於帛11發明之喷珠加U中，可於頂面安 上述外部氣流弓丨導構件之情料，在相較上述外部氣流 導構件之與固著於上述喷珠加卫室之頂内壁面之端為相反201221300 VI. [Technical Field] The present invention relates to a bead processing apparatus which performs bead processing by causing an ejecting material to collide with the surface of a workpiece. [Prior Art] In the field of surface treatment such as roughening, smoothing, surface roughness adjustment, chamfering, deburring, end face processing (rounding), and removal of wrinkles of foundry products, Bead processing. Further, recently, bead processing has been used in microfabrication such as etching using a small spray material. The spray material sprayed from the nozzle for processing the bead processing which is disposed inside the bead processing, and the dust generated by the bead processing (hereinafter, simply referred to as "dust") are collected and sucked to the suction means via the duct (generally referred to as dust collector), but a part of it will adhere to the inner wall surface. On the inner wall surface, multiple configurations are available from outside. It is difficult to confirm the condition of the bead processing because the window and the dust adhere to the window. Further, the sprayed material and the dust are gradually deposited on the inner wall surface, and when the amount of deposition of the sprayed material or the like exceeds the adhesion to the inner wall surface, it falls down at once. After the bead processing is completed, the object to be processed is attached to the bead processing chamber after the bead is added to the sprayed material and the dust on the workpiece, and is then attached to the bead processing chamber. When the sprayed material and the dust on the inner wall surface of the chamber are dropped, the sprayed material and the dust are again attached to the workpiece, and the sprayed material and the dust are leaked out to the outside of the bead processing chamber, which is not preferable for the working environment. As a method for preventing the spray material from adhering to the inner wall surface of the bead processing chamber, 201221300 k is a bead processing device which connects the pressure wall into the top surface of the bead processing chamber. Compressed air is supplied to Zha Shi, and the pressure generated by you is new to the inner wall surface of the bead processing device. (Patent Document u. In this device, the compressed air introduced into the above-mentioned spray bead plus X chamber must also be borrowed. In the case of the φ attraction means, the attraction means is increased. [Provisional Technical Documents] [Patent Document 1] [Patent Document 1] JP-A-2001-334466 [Summary of the Invention] [Problems to be Solved by the Invention] In other words, the present invention provides a bead processing device in which the spray material and the dust do not adhere to the inner wall surface of the bead processing chamber in a simple structure. [Technical means for solving the problem] The bead processing device of the present invention includes: a bead processing chamber a bead processing for ejecting a spray material from a bead processing nozzle provided inside, and a suction means for sucking the bead processing chamber The bead processing chamber has at least one or more external air suction ports for sucking outside air into the bead processing chamber, and causing the sucked outside air to flow along the inner wall surface of the bead processing device. (1) In the bead processing apparatus of the first aspect of the invention, the outer surface of the bead processing chamber having the external air suction port may be disposed to rectify and attract the outside air to the bead processing chamber. In the bead processing apparatus of the second aspect of the invention, the external air flow forming member may be a hollow member having both ends open, and the opening surface may be attached to the above The bead blasting chamber is connected to the outside air suction port, and is connected to the external air suction port. (3rd invention) The bead blasting device according to the third aspect of the present invention, wherein the external airflow rectifying member and the σ surface can be opened Further, in the third embodiment of the bead processing apparatus, the outer air=rectifying member may be orthogonal to the opening surface. In the bead processing apparatus according to the first or second aspect of the invention, the cross-section is a shape which is bent into a shape of a letter or an L shape or a shape which is bent into a shape of a shape. The external airflow guiding member that guides the outside air sucked by the outside air suction port to flow along the inner wall surface is disposed in the bead processing chamber. (Sixth invention) Further, the bead processing of the sixth invention In the device, the external airflow guiding member may be in the shape of a plate, and one end surface thereof is fixed to at least one of a top surface and a side wall surface of the bead processing chamber, and the external airflow guiding member may be fixed relative to the external airflow guiding member In the bead processing apparatus according to the sixth aspect of the invention, the outer airflow guiding member may be in a plate shape. The one end surface is fixed on at least one of the top surface and the wall surface of the bead processing chamber, so that the top surface and the side wall surface of the bead processing chamber of the 201221300 guiding member are fixed with respect to the external air flow. Orthogonal longitudinal section is bent into <The shape of the shape or the shape of the curved shape/shape. According to a seventh aspect of the present invention, in the bead processing apparatus according to the seventh or eighth aspect of the present invention, the external airflow guiding member and the inner wall surface on the side of the inner wall surface to which the external airflow guiding member is fixed and which is introduced into the external airflow can be provided. The angle formed is 9〇. the following. According to a ninth aspect of the present invention, in the bead processing apparatus of the ninth aspect, the external airflow guiding member is disposed to guide the outside air sucked by the external air suction port to be attracted along the outside air The inner wall of the mouth. Further, in the bead processing apparatus according to the sixth aspect of the invention, the airflow generated inside the bead processing chamber may be disposed in the bead processing chamber to guide the internal airflow flowing along the inner wall surface. Guide member. In the bead processing apparatus according to the eleventh aspect of the invention, the internal airflow guiding member may be, for example, a flat plate having a flat surface, and the flat end faces of the internal airflow guiding member may be respectively fixed. It is placed on the side of the above-mentioned bead processing chamber. According to a fourth aspect of the present invention, in the bead processing apparatus of the invention of the first aspect, the inner airflow perpendicular to the inner wall surface can be made to the inner wall surface of the bead processing chamber to which the external airflow guiding member is fixed The longitudinal section of the guiding member is any one of a shape that is bent into a sub-shape or a curved shape. (13th) Further, in the bead processing apparatus of the ηth invention, the internal air 6 201221300 2 can be placed away from the external airflow guiding member and away from the above. The position of the P work side of the suction port. According to a fourth aspect of the invention, in the bead processing apparatus of the seventh aspect, the internal portion Ϊ: a distance from an inner wall of the bead processing chamber may be closer to an end surface side of the outer oxygen suction opening; The side of the end face away from the above-mentioned external air suction port is narrower. According to a fifth aspect of the present invention, in the bead processing apparatus according to the sixth aspect of the present invention, in the case where the external airflow guiding member is attached to the top surface, the bead processing chamber: the wall surface 2 is compared with the external airflow guiding member A backflow prevention member is disposed at a position farther from the outer suction port than the end opposite to the end of the inner wall surface of the bead to the top of the bead. (16th invention) 1 Further, in the spray beading U of the invention of 帛11, the external airflow guide member may be attached to the top surface, and the spray may be fixed to the sprayer than the external airflow guide member. The end of the inner wall of the top of the beading room is the opposite
侧之端更遠離上述外部空氣吸引口，且與上述内部氣流弓I 導構件之距離上述外部空氣吸引口更遠之端面相距更遠的 上述喷珠加工室之側壁面上，固著逆流阻礙構件。（第、 發明） 7 又，於第16或第π發明之喷珠加工裝置中，可使上 述逆流阻礙構件之與遠離上述外部空氣吸引口之方向正交 之剖面積朝向上述噴珠加工室之遠離上述外部空氣吸引口 之方向而變大。（第18發明） 又，於第18發明之喷珠加工裝置中，可使與固著有上 述外部氣流引導構件之上述喷珠加工室之頂面及側壁面正 201221300 交的上述逆流阻礙構件之縱剖面為三角形。（第i9 [發明之效果] 於喷珠加工時，喑接 策珠加工至内係藉由吸引手段進行吸 引而成為負壓環境。藉由於哈 猎由於嘴珠加工室之壁面配置外部空 氣吸引口’而將外部空氣吸(導人）至喷珠加工室内。 於如吸引至喷珠加工室内之外部空氣之㈣（以下，記作 「外部氣流」）沿著該噴珠加工室之内壁面之位置配置外 :空氣吸引口’藉此可防止喷射材及粉塵附著於噴珠加工 室之内壁（第1發明）。此時，若於上述外部空氣吸引口 之上述喷珠加工至之外壁面側配置外部氣流整流構件，則 外。P狄他藉由该外部氣流整流構件整流後，通過外部空氣 及引口而被吸引至啃玫六、 赁珠加工至内，因此可效率良好地吸引 至上述噴珠加工室内（第 处达 円（第2發明）。上述外部氣流整流構 件為兩端開口之中空狀構件，其中一開口面固著於上述喷 珠加工室之外壁面’並與上述外部空氣吸引π連接（第3 發明）。上述外部氣流整流構件之與開口面正交之剖面可 為矩形、折以L字狀或〈字狀之形狀、f曲成/字狀之 一者（第4及第5發明）…將上述外部氣流 酉己置於喷珠加工室内’藉此可沿著欲防止喷射材 及粉塵附著之壁面而有效率地形成外部氣流（第6發明）。 較=的是使上述外部氣流引導構件成為板狀，並將該板 *面固著於喷珠加工室之頂面或側壁面。若使與固著 =上述外部氣流引導構件之上述嘴珠加玉裝置之内壁面正 六 述外。P氣流引導構件的縱剖面成為矩形，則喷珠加 8 201221300 工室之製作會非常簡單（第7 ΛιΙ , 赞月）。又，亦可使上述縱 面折曲成〈予狀或彎曲成/ ....,,L.. L 子狀以便使外部氣流效率 ……述内壁面（第8發明） 流引導構件、與固著有該外部 上达… 軋'爪弓丨導構件之内壁面之壤 入外部氣流之側的内壁面所成 "战之角度較佳為90。以下（第9 發月）。上述外部氣流引導構 . L Α 冉1干了配置成使外部氣流沿著 配置有上述外部空氣吸引口之内壁面 Μ ^ 門湓面，亦可配置成使外部 =者與配置有上述外部空氣吸引口之内壁面成直角之 土 ^上料部氣流引導構件可較佳地用於配置成使 卜4乳 '抓U沿著配置有上述外 式流動（第1。發明卜 L-及引口之内壁面之方 ”斤吸引之外部空氣，隨著遠離上述外部空氣吸引口而 “變弱，防止噴射材及粉塵附著之力下降。另一方面， :珠加：3產生有朝向吸引手段流動之氣流（以下，記 内邛氣机」）’因此藉由將上述内部氣流引導構件配 :噴珠加工室内，而可將内部氣流引導至内壁面（第11 考明）。使上述内部氣流引導構件成為例如平坦面呈矩形 # 、 使該内部氣流引導構件之平行之兩端面分別固 ;喷珠加工至之側面，藉此可將内部氣流效率良好地引 壁面（第12發明）。較佳為，使相對於固著有上述 :邻礼流引導構件之内壁面而正交之上述外部氣流引導構 之縱剖面折曲成〈字狀或f曲成/字狀（第13發明）。 =上述内部氣流引導構件配置於離開外部氣流引導構 且延離上述外部空氣吸引口之側之位置，藉此可不對外 9 201221300 部空氣之吸引造成影響地將内部氣流弓i導至自外部空氣吸 引口所吸引之外部空氣之流動變弱之部位等目標部位（第 Η發明卜X’±述内部氣流引導構件與噴珠加工室之内 壁之距離與靠近上述外部空氣吸引口之端面側相比，使遠 離上述外部空氣吸引口之端面側變窄，藉此可將内部氣流 有效率地引導至自外部空氣吸引口所吸引之外部空氣之流 動變弱之部位等目標部位（第丨5發明）。 特別於與壓縮空氣—併喷射喷射材之喷氣器（心㈣ ，自喷珠加工用喷嘴所喷射之壓縮空氣（以下，記作「噴 射流」）碰撞被加工物或喷珠加工室之内壁面，其一部分 ::頂面方向（上方）反射。由於藉由反射所產生之氣流， …上述外部空氣吸引σ所吸引之外部氣流或藉由上述内 ::流引導構件而引導至内壁面之内部氣流因反射氣流而 i外IT。藉由設置有逆流阻礙構件，可防止反射氣流阻 卜：氣流及内部氣流之流動（第16發明）。於使上述内 為構件固著於上述喷珠加工室内之情形時，較佳 山…内部氣流引導構件之遠離上述外部空氣吸引口之 明^相距較遠之位置設置上述逆流阻礙構件（第丨7發 ^使上述逆流阻礙構件之與遠離上述外部空氣吸引口 °正交之剖面積’朝向遠離上述嗔珠加工裝置之上述 :部空氣吸引口之方向而變大，藉此不會由於設置該逆^ =而阻礙外部氣流及内部氣流之流動。尤佳為縱二 面為二爲形（第18及第19發明）。 10 201221300 【實施方式】 式來說明本發明之噴珠加工 ，本發明並不限定於本說明 可適當變更。再者，於以下 以噴砂裝置為例，使用圖 裝置之實施形態之一例。再者 書中記載之實施形態，視需要 說明中，上下左右方向只要無特別說明，係作為圖中之上 下左右方向（將頂側作為上方）而進行說明。又本說明 書中之内壁面只要無特別說明，係表示喷珠加工室之頂面 及側壁面。 喷珠加工裝置i包含：噴珠加工室10,其内部配置有 喷珠加工用喷嘴n (本實施形態中為吸引式）；以及吸引 手段20 (本實施形態中為集塵裝置），其經由連接於該噴 珠加工室10之底部之導管D而連結’用以產生吸引力且回 收粉末。又’配置有分離手& 21 (本實施形態中為旋風式 分級裝置），其用以自喷射材及粉塵中將可再使用之喷射 材與不可再使用之喷射材及粉塵加以分離。 於噴珠加工用噴嘴上，經由軟管（未圖示）而連接有 壓縮空氣供給源（未圖示）。朝向被加工物w 一併喷射喷 射材及由壓縮空氣供給源所產生之壓縮空氣，藉此進行被 加工物之噴珠加工。噴射材由於與被加工物w之碰撞等而 導致其一部分產生破裂或缺損。又，由於與噴射材之碰撞 而導致被加工物W之表面被研削而產生粉塵。該等喷射材 及粉塵於噴珠加工室内飛舞，藉由自吸引手段20產生之吸 引力對其等進行吸引，並移送至分離手段2丨。將移送至分 離手段21中之喷射材及粉塵分級為由於破裂或缺損等而不 201221300 可再使用之噴射材及粉塵（輕粉體）、以及可再使用之噴 射材（重粉體），並藉由吸引裝置2〇將不可再使用之噴射 材及粉塵时。m，將可再使用之喷射材儲留於喷 射材漏斗22中’經由軟管Η而再次輸送至喷射喷嘴並再 次與壓縮空氣一併喷射而進行喷珠加工（參照圖丨）。 喷珠加工室10内係藉由吸引手段20進行吸引，即為 負壓環境，因此藉由於喷珠加卫室1G之壁面配置外部空氣 吸引口 12而將外部空氣吸引（導入）至喷珠加工室10内。 外部空氣吸引口 12配置成使所吸引之外部空氣之流動沿著 喷珠加X室1G之㈣面。喷射材及粉塵會由於自喷珠加工 用喷嘴U之喷射所產生之摩擦或與被加工物w之碰撞所產 生之靜電 '大氣及壓縮空氣中之水分或油分之吸附、分子 間力 '凹凸部彼此之勾掛等原因’而附著於喷珠加工室W 之内壁面’但藉由所吸引之外部空氣沿著内壁面流動而使 喷射材及粉塵之附著受到阻礙。在喷珠加卫室⑺之内壁面 中，於欲防止附著於頂面1〇a之情形時，於側壁面i〇b之上 部位配置上述外部空氣吸引口 12即可，於欲防止附著於側 土面1 Ob之清形時，於頂Φ J 〇a中之該側壁側配置上述外部 空氣吸引D 12即可，亦可將其等加以組合。又，上述外部 空氣吸引口 12較佳為相對於該外部空氣吸引口 12而於該 喷珠加工室1G之外壁面側配置外部氣流整流構件12f (參 照圖3 ( A ))。於外部氣流整流構件⑵内自喷珠加工 室10之外部朝向内部之外部空氣經整流後進行流動，因此 即便於喷珠加工室10内之氣流於外部空氣吸引口 12附近 12 201221300 朝向噴珠加工室1〇之外部之向量較大的情形時，亦可 該經整流之外部空氣而不流出至外部，將外部空 好地吸引至喷珠加工室10内。再者，外部氣流整流構件二 係自外部空氣吸引口 12朝向噴珠加工室1〇之外側方向而 配置，且只要可對所吸引之外部空氣進行整流，則其形狀而 與噴珠加工室10之壁面所成之角度、及大小無特別限定。 例如圖3 (B)所示，可使外部氣流整流構件i2f相對於噴 珠加工室10《壁面而具有特定之任意較佳之角度而非直 角，亦可使用具有R面之彎曲的外部空氣整流構件1 。又 如圖3⑻乂圖3(C)相當於圖3(A)之八_八線剖面圖’) 所不，於將複數個外部空氣吸引口 12配置於同一線上時， 可對各個外部空氣吸引ϋ 12分別配置外部氣流整流構件 Uf，亦能夠以覆蓋所有外部空氣吸引口 12之方式而對外部 空氣吸引口 12整體配置外部氣流整流構件12f。 —於喷珠加工室10内，配置有用以引導吸引至欲防止附 著之内壁面之外部空氣的外部氣流引導構件13。外部氣流 引導構件1 3以板狀構件形成，且其一端面固著於噴珠加工 裝置10之頂面1〇a或侧壁面10b (參照圖4 ( A))。與固 者有該外部氣流引導構件13之内壁面正交之縱剖面可為矩 7折曲成〈子狀之形狀、彎曲成/字狀之形狀之任一者。 此時，該外部氣流引導構件13、與固著有該外部氣流引導 構件13之内壁面之導入外部氣流之側的内壁面所成之角度 0較佳為90。以下。若Θ大於90。，則沿著喷珠加工室1〇 之内壁面流動之外部氣流之量變少，從而阻礙上述喷射材 13 201221300 及粉塵之附著之力變弱（參照圖4 ( b )、。v 氣流引導構件U，可如圖5(A) 卜一 „ ^ , L , 丁5^167固者於與配 有上述外部空氣吸引口之内壁面正交之内壁面， 圖5⑻所示將—端面固著於配置有上述外部空氣吸弓| η 之内壁面。前者可改變所吸引之外部空氣之流動方向二 者可進行整流，以使外部空氣不會成為於吸引至噴珠加2 室10内後立即自内壁面離開之氣流。χ，關於外部氣= 導構件13’於設置有複數個上述外部空氣吸引口 12之情 時’外部氣流引導構件13可根據目的而成為將其—端^著 於與'置有上述外部空氣吸引口 12<内壁面正交之内壁 面、固著於配置有上述外部空氣吸引口 12之内壁面、以及 其等之組合之任-情形（圖5 (C))。又，當無需對所有The end of the side is further away from the external air suction port, and the side wall surface of the bead processing chamber which is farther away from the end surface of the inner air flow guiding member farther from the outer air suction port is fixed with the counterflow obstructing member . Further, in the bead processing apparatus of the 16th or πth aspect, the cross-sectional area of the backflow prevention member orthogonal to the direction away from the external air suction port may be directed toward the bead processing chamber It becomes larger away from the direction of the above-mentioned external air suction port. According to the eighteenth aspect of the present invention, in the bead processing apparatus of the eighteenth aspect, the backflow preventing member that intersects the top surface and the side wall surface of the bead processing chamber to which the external airflow guiding member is fixed may be 201221300. The longitudinal section is a triangle. (i9) [Effects of the Invention] In the processing of the bead processing, the beading process is performed until the inner portion is sucked by the suction means to become a negative pressure environment, because the outer air suction port is disposed on the wall surface of the bead processing chamber. 'The outside air is sucked (introduced) into the bead processing chamber. (4) (hereinafter, referred to as "external air flow"), which is attracted to the outside air in the bead processing chamber, along the inner wall surface of the bead processing chamber In addition to the positional arrangement: the air suction port' prevents the spray material and the dust from adhering to the inner wall of the bead processing chamber (first invention). In this case, the bead processing on the outer air suction port is performed to the outer wall surface side. When the external airflow rectifying member is disposed, the P-Dita is rectified by the external airflow rectifying member, and is attracted to the 啃 六 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 In the bead processing chamber (the second invention), the external airflow rectifying member is a hollow member opened at both ends, wherein an open surface is fixed to the outer wall surface of the bead processing chamber' The external air suction π is connected to the outside air (third invention). The cross section orthogonal to the opening surface of the external air flow rectifying member may be rectangular, folded in an L shape or a shape of a shape, or one of f curved/shaped. (4th and 5th inventions) The external airflow is placed in the bead processing chamber, whereby the external airflow can be efficiently formed along the wall surface on which the spray material and the dust are to be adhered (the sixth invention). In contrast, the external airflow guiding member is formed into a plate shape, and the plate surface is fixed to the top surface or the side wall surface of the bead processing chamber. If the above-mentioned nozzle is fixed to the external airflow guiding member The inner wall of the jade device is just six. The longitudinal section of the P airflow guiding member becomes a rectangle, and the production of the beading plus 8 201221300 will be very simple (7th ΛιΙ, 赞月).曲成[Preform or bend into /.., L.. L sub-shape in order to make the external airflow efficiency... the inner wall surface (the eighth invention), the flow guiding member, and the fixing of the external... 'The inner wall surface of the claw arch guide member enters the side of the external airflow The angle of the surface is preferably 90. The following (9th month). The external airflow guiding structure L Α 冉1 is configured to make the external airflow along the inner wall surface where the external air suction port is disposed Μ ^ 湓 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , The external air that is attracted by the above-mentioned external flow (the first invention, the L- and the inner wall surface of the inlet) is weakened to prevent the sprayed material and the dust from being separated from the external air suction port. On the other hand, the bead addition: 3 generates a gas flow that flows toward the suction means (hereinafter, the internal helium compressor is used). The internal airflow can be directed to the inner wall (11th test). The internal airflow guiding member is, for example, a flat surface having a rectangular shape, and the parallel end faces of the internal airflow guiding member are respectively fixed; and the bead is processed to the side surface, whereby the internal airflow can be efficiently led to the wall surface (Twelfth invention) . Preferably, the longitudinal section of the external airflow guiding structure orthogonal to the inner wall surface of the adjacent flow guiding member is bent into a shape of a word or a curved shape (the thirteenth invention) . The internal airflow guiding member is disposed at a position away from the external airflow guiding structure and extending away from the side of the external air suction opening, thereby guiding the internal airflow to the external air suction without affecting the attraction of the air to the 201221300 a target portion such as a portion where the flow of the outside air that is attracted by the mouth is weakened (the second invention, the distance between the internal airflow guiding member and the inner wall of the bead processing chamber is closer to the end surface side closer to the external air suction port, By narrowing the end face side away from the external air suction port, the internal airflow can be efficiently guided to a target portion such as a portion where the flow of the outside air sucked from the external air suction port is weakened (the fifth invention). In particular, in the case of a compressed air-jet jet (heart), the compressed air (hereinafter referred to as "jet stream") sprayed from the nozzle for jet processing collides with the inner surface of the workpiece or the bead processing chamber. a part of it: the top direction (upper side) reflection. Due to the air flow generated by the reflection, the external air attracts the outside of the attraction σ The airflow or the internal airflow guided to the inner wall surface by the inner::flow guiding member is caused by the reflected airflow. By providing the counterflow obstructing member, the reflected airflow can be prevented from being blocked: the flow of the airflow and the internal airflow (the first In the case where the inner member is fixed in the bead processing chamber, it is preferable that the inner air flow guiding member is disposed at a position far from the outer air suction port at a distance from the outer air suction port. (The seventh embodiment of the present invention is such that the cross-sectional area of the backflow blocking member orthogonal to the outside air suction port is increased toward the direction of the air suction opening of the bead processing device, thereby preventing The flow of the external airflow and the internal airflow is hindered by the provision of the inverse ^=. It is particularly preferable that the longitudinal two sides are two-shaped (18th and 19th inventions). 10 201221300 [Embodiment] The bead processing of the present invention will be described. The present invention is not limited to the description, and may be appropriately changed. In the following, a sand blasting apparatus is taken as an example, and an example of an embodiment of the drawing apparatus is used. In the description of the above, the upper and lower sides are described as the upper and lower directions in the drawing (the top side is the upper side) as long as it is not described in detail. The inner wall surface in the present specification means the beading unless otherwise specified. The bead processing apparatus i includes a bead processing chamber 10 in which a bead processing nozzle n (in the present embodiment, a suction type) and a suction means 20 (this embodiment) are disposed. In the middle, it is a dust collecting device) which is connected via a duct D connected to the bottom of the bead processing chamber 10 to generate an attractive force and collect the powder. Further, a separate hand & 21 is disposed (in this embodiment, a cyclone) a classifying device for separating a reusable spray material from a non-reusable spray material and dust from a spray material and dust. The spray bead processing nozzle is via a hose (not shown) A compressed air supply source (not shown) is connected. The sprayed material and the compressed air generated by the compressed air supply source are sprayed toward the workpiece w, whereby the bead processing of the workpiece is performed. The sprayed material is broken or defective due to a collision with the workpiece w or the like. Further, the surface of the workpiece W is ground by collision with the spray material to generate dust. These spray materials and dust are fluttered in the bead processing chamber, and are sucked by the attraction force generated by the suction means 20, and are transferred to the separation means 2A. The sprayed material and dust transferred to the separation means 21 are classified into sprayed materials and dust (light powder) which can be reused due to cracks or defects, and reusable sprayed materials (heavy powder), and By the suction device 2, when the spray material and dust are not reusable. m, the reusable spray material is stored in the spray material hopper 22, and is again transported to the spray nozzle via the hose 并 and sprayed together with the compressed air to perform bead processing (refer to Fig. 。). Since the inside of the bead processing chamber 10 is sucked by the suction means 20, that is, a negative pressure environment, the outside air is sucked (introduced) to the bead processing by arranging the external air suction port 12 on the wall surface of the bead filler chamber 1G. Inside the chamber 10. The external air suction port 12 is disposed such that the flow of the attracted outside air is added to the (four) face of the X chamber 1G along the bead. The sprayed material and the dust are caused by the friction generated by the jetting of the nozzle U for the bead processing or the static electricity generated by the collision with the workpiece w. The adsorption of the moisture or oil in the atmosphere and the compressed air, the intermolecular force The reason why the hooks are attached to the inner wall surface of the bead processing chamber W, but the external air that is attracted flows along the inner wall surface to impede the adhesion of the spray material and the dust. In the inner wall surface of the bead blasting chamber (7), when it is intended to prevent adhesion to the top surface 1a, the outer air suction port 12 may be disposed on the upper side of the side wall surface i〇b to prevent adhesion thereto. When the lateral surface 1 Ob is clear, the external air suction D 12 may be disposed on the side wall of the top Φ J 〇a, or may be combined. Further, it is preferable that the external air suction port 12 is provided with an external airflow rectifying member 12f on the outer wall surface side of the bead processing chamber 1G with respect to the external air suction port 12 (refer to Fig. 3(A)). In the external airflow rectifying member (2), the external air from the outside of the bead processing chamber 10 toward the inside is rectified and flows, so that even if the airflow in the bead processing chamber 10 is near the external air suction port 12, 201221300 is directed toward the bead processing. When the vector outside the chamber 1 is large, the rectified outside air may not flow out to the outside, and the outside air may be sucked into the bead processing chamber 10 in good condition. Further, the external airflow rectifying member 2 is disposed from the outside air suction port 12 toward the outer side of the bead processing chamber 1A, and is shaped to be in contact with the bead processing chamber 10 as long as the external air that is attracted can be rectified. The angle and size of the wall surface are not particularly limited. For example, as shown in FIG. 3(B), the external airflow rectifying member i2f may have any specific preferred angle with respect to the bead processing chamber 10 "wall surface instead of a right angle, and an external air rectifying member having a curvature of the R surface may be used. 1 . 3(8) and FIG. 3(C) corresponds to the eighth to eighth line cross-sectional view of FIG. 3(A). When a plurality of external air suction ports 12 are disposed on the same line, the external air can be attracted. The external airflow rectifying member Uf is disposed separately from the crucible 12, and the external airflow rectifying member 12f can be disposed integrally with the external air suction port 12 so as to cover all of the external air suction ports 12. - In the bead processing chamber 10, an external airflow guiding member 13 for guiding the outside air to be attracted to the inner wall surface to be attached is disposed. The external airflow guiding member 13 is formed of a plate-like member, and one end surface thereof is fixed to the top surface 1a or the side wall surface 10b of the bead processing apparatus 10 (refer to Fig. 4(A)). The longitudinal section perpendicular to the inner wall surface of the external airflow guiding member 13 may be any one of a shape in which the moment 7 is bent into a shape of a sub-shape or a shape of a curved shape. At this time, the angle 0 between the external airflow guiding member 13 and the inner wall surface on the side of the inner wall surface of the external airflow guiding member 13 to which the external airflow is introduced is preferably 90. the following. If Θ is greater than 90. Then, the amount of the external airflow flowing along the inner wall surface of the bead processing chamber 1 is reduced, and the force for blocking the adhesion of the spray material 13 201221300 and the dust is weakened (refer to FIG. 4 (b), v flow guiding member U , as shown in Fig. 5(A), „^, L, 丁5^167 are fixed to the inner wall surface orthogonal to the inner wall surface of the outer air suction port, and the end surface is fixed in the arrangement as shown in Fig. 5(8). There is an inner wall surface of the outer air suction bow | η. The former can change the flow direction of the external air that is attracted, and can be rectified so that the outside air does not become attracted to the inside of the spray chamber plus the chamber 10 The airflow leaving the wall surface. χ, regarding the external air = the guide member 13' is provided with a plurality of the above-mentioned external air suction ports 12, the external airflow guiding member 13 can be placed in accordance with the purpose The external air suction port 12<the inner wall surface orthogonal to the inner wall surface, the inner wall surface on which the outer air suction port 12 is disposed, and the like are combined (Fig. 5(C)). When not needed for all
上述外部空氣吸引口 12西己置上述外部氣流引導構件U 時’亦可僅對一部分上述外部空氣吸引口 12言史置外部氣流 引導構件13 (圖5 ( Ό) ) 。 l 门】自外部空氣吸引口 1 2被吸引後，外部空氣之流動較 強，阻礙喷射材及粉塵附著於噴珠加工室之内壁面之效 果較高，但隨著遠離外部空氣吸引口 12，外部空氣之流動 變弱，上述阻礙附著之效果變弱。於喷珠加工室10内，產 生有朝向喷珠加工室10之底部、即吸引手段之氣流（内部 氣流）° (再者，所謂本說明書中之内部氣流，係表示以 下述氣流為首之於喷珠加工室内所產生之除剛導入後之外 部氣流以外的氣流之概念，上述氣流係藉由喷珠加工用喷 嘴U而與噴射材一併喷射之壓縮空氣（噴射流）碰撞被加 201221300 工物w或内壁面而產生反射，其一部分朝向上方 向與吸引手段20連結之底部）。將内部氣流朝上述… 流之流動變弱之部位引導，藉此可阻礙上述附著1以將 内部氣流朝上述外部空氣之流動變弱之部位引導 =導構件Μ係配置於喷珠加工室1〇内。内部氣流;丨導 構件Μ係'使用折曲成〈字狀之板狀構件（例如，折曲成⑶ 〜Π0°)(參照圖6(A))。上述内部氣流引導構件14 糸相對於外部S氣吸引σ 12而配置於遠離上述外部氣流引 導構件13之位置。又’配置成使内部氣流引導構件14與 二珠加工至10之内壁面之距離成為與靠近外部空氣吸引口 之端面側相比’遠離外部空氣吸引口 12之端面側變窄。 ;;導=二6所示配置有外部氣流引導構件Π與内部氣流 之情形時，配置成使配置有外部空氣吸引口 Η ::面與内部氣流引導構件14之距離成為與靠近外部空氣 吸引口 12之側即上方相比，遠離外部空氣吸…2之：When the external air suction port 12 is placed on the external airflow guiding member U, the external airflow guiding member 13 may be placed on only a part of the external air suction port 12 (Fig. 5 (Ό)). l Door] Since the external air suction port 12 is attracted, the flow of the outside air is strong, and the effect of preventing the spray material and the dust from adhering to the inner wall surface of the bead processing chamber is high, but as it is away from the external air suction port 12, The flow of the outside air is weakened, and the above-described effect of hindering adhesion is weak. In the bead processing chamber 10, a gas flow (internal air flow) toward the bottom of the bead processing chamber 10, that is, the suction means is generated. (Further, the internal air flow in the present specification means that the air flow is as follows. The concept of the airflow generated in the bead processing chamber other than the external airflow just after the introduction, the airflow is collided with the compressed air (jet stream) injected together with the injection material by the nozzle U for the bead processing, and the 201221300 workpiece is added. w or the inner wall surface is reflected, and a part thereof faces the bottom of the suction means 20 in the upward direction). The internal airflow is guided to a portion where the flow of the flow is weakened, whereby the adhesion 1 can be blocked to guide the internal airflow to a portion where the flow of the external air is weakened. The guide member is disposed in the bead processing chamber 1〇. Inside. The internal air flow; the 丨 guide member ' ' uses a plate-shaped member that is bent into a shape (for example, bent into (3) ~ Π 0 °) (refer to Fig. 6 (A)). The internal airflow guiding member 14 is disposed at a position away from the external airflow guiding member 13 with respect to the external S gas suction σ12. Further, the distance between the internal airflow guiding member 14 and the inner wall surface of the bead processed to 10 is set to be smaller than the end surface side closer to the external air suction opening than the outer air suction opening 12. When the external airflow guiding member Π and the internal airflow are arranged as shown in FIG. 2 and 26, the distance between the external air suction port and the internal airflow guiding member 14 is set to be close to the external air suction port. The side of 12 is the upper side compared to the outside air suction... 2:
:::變小。該距離可連續變窄’亦可存在有其一部分且 有連續相同距離之部位（參照圖6(A)及圖6 (Β) I 述内部氣流引導構件14除使用上述形狀以外，亦可使 广字狀之板狀（參照圖6(c))、及未折 矩形板狀（參照圖6(D))之任一情形。 上述反射之氣流之一部分係於側壁面⑽及其附 :因此藉由外部空氣吸引口 12所導入且藉由外部氣 沿著側壁φ⑽向下流動之外部氣流、以及 猎由内耗&引導構件而沿著側壁面⑽向下流動之内部 15 201221300 氣流之流動會由於上述反射之翁许而 耵又軋机而艾到阻礙（參照圖 7)。為防止此情形，於喷珠加卫室1()之側壁面⑽配置 有逆流阻礙構件15。上述逆流阻礙構件15係配置成使 部位於上述内部氣流引導構件14之下端部之更下方”交理 想的是該逆流阻礙構件15越往下方水平方向之剖面積 變大’以便不會由於設置上述逆流阻礙構件Η而使上述向 下流動之外部氣流及内部氣流之流動受到阻礙。縱剖面可 較佳使用三角形（參照圖8(A))、1/4圓（參照輯 二橢圓（參照圖8(C))、以及_之一部分變形而上端 為銳角之1 /4橢圓（參照圖8 ( D ))等之任 本實施形態中’如圖2所示，於喷珠：工室者Μ之上部 位配置有外部空氣吸引口 12 ° …吸引之外部氣流沿著側壁I:=外部空氣吸引 狀之外部氣流引導構…置成使；：而將矩形板 首，A 了此u a 6 成使其—端與頂面10a垂 直為了防止喷射材及粉塵附著於 位置之更下方的側壁面⑽上，於預二=變弱之 以引導内部氣流之由折曲成〈字椹：位置，將用 部氣流引導料14,配置於_ ^板狀構件所構成之内 3* M . 、渴上述外部氣流引導構件且 退離上述外部空氣吸引口 12之側之位 件 述外部空氣吸引口 12之側壁面⑽上，將縱::：置有上 垂直，幻…成使縱面之底邊與該側壁面10b 且使邊逆流阻礙構件15之上 引導構件U之下端部的更下方。 ；上述内部氣流 (實施例） 16 201221300 圖2中，圖2(A)表示平面圖，圖2(b)表示右側視 圖，圖2(C)表示平面圖。又，圖2(D)表示圖2(b) 之C-C線剖面圖，圖2 ( E)表示圖2 ( A)之D D線剖面 圖，圖2 ( F )表示圖2 ( A )之E_E線剖面圖。又，圖2 ( E ) 及圖2(F)中，為方便起見而省略喷珠加工用喷嘴u及被 加工物W。使用圖1所示之噴珠加工室進行噴珠加工。使 吸引手段20運轉，對被加工物w ( 27〇x28〇xti〇之鋼材） 喷射喷射材（WA#600:新東工業股份有限公司製造）15〇 分鐘。又，於喷珠加工室10之側壁面1〇b，配置有用以確 認喷珠加工中之喷珠加工室10之内部的窗（未圖示），確 認喷珠加工中之内壁面之狀態。於喷珠加工後，未確認到 喷射材及粉塵於内壁面之堆積。又，於噴珠加工中，亦未 確認到喷射材及粉塵於内壁面之堆積，根據本發明，可於 喷射材.及粉塵不附著於噴珠加工室1〇之内壁面之狀態下進 行喷珠加工。 (變更例） 已對本貫施形態之喷珠加工用喷嘴為吸引式之情形進 行了說明，但於藉由對裝填有喷射材之加壓槽進行加壓， 而將喷射材與壓縮空氣流一併輸送至噴珠加工用喷嘴而進 行01射的所明直壓式之情形時’亦可較佳地使用本發明。 ^又，噴珠加工中，不僅於將喷射材與壓縮空氣一併進 打喷射之喷氣器之情形時，亦於藉由葉輪旋轉所產生之離 〜力而投射喷射材之離心式喷珠加工裝置（所謂珠粒喷擊 t blast )裝置）之情形時，亦可較佳地使用本發明。 17 201221300 又，用於噴珠加工之喷射材除使用通常喷珠加工中所 使用者（金屬系（所謂珠粒（shot )、喷粒（gri(j )、鋼線 (cut wire))之外，只要為陶瓷系、樹脂系、植物系之粉 體）則並無特別限定，均可適用於本發明。 於實施例中，將四角形之外部空氣吸引口相對於噴珠 加工室之側壁面而平行地配置有3個，但並不限定其形狀 及數量，可進行適當變更。 於實施例中，設置成使未連接於喷珠加工室之外壁之 外部氣流整流構件之開口面朝上（頂面方向），但亦可設 置於水平方向上β 折曲成〈字狀之内部氣流引導構件可連續地折曲，亦 可-部分為直線，還可使折曲率（角度）根據部位而變化。 内部氣流引導構件亦可為f曲成y字狀之板狀構件。 該情形時，可較佳地使用連續地弯曲、—部分為直線、以 及f曲率根據部位而變化之任一情形。 逆流阻礙構件只要如實 上述外部空氣吸引口之噴珠 述外部氣流整流構件、上述 内部氣流引導構件之情形。 化形態及實施例所示，為具備 加工室，則亦可用於不具備上 外部氣流引導構件、以及上述 官m p氣流及内部氣流沿著喷珠加工 至之側壁面流動之方式而訊里士，丄， 工 述外部氣流整流構件 '上计 上 氣流引導構件、以及上㈣件、上述内部 β 阻礙構件，但亦可配置成使 卜。Ρ軋hL及内部氣流沿著啥 吏 〇者噴珠加工室之頂面流動。 18 201221300 【圖式簡單說明】 加工裝置之構成進 行說明 圖1係對本實施形態之嗔珠 之概略圖。 圖2係表示本實施形態之噴珠加工室 圖。圖係前視圖’圖2(b)係圖2(a)::概： 箭視圖（右側視圖），圖2(〇係圖2(a)之 視 圖，圖2、(D)係圖2…之CM:線剖面圖，圖2(εΠ 圖2(Α)之Μ線剖面圖，圖2U)係圖2(α)^εε 線剖面圖。 氣吸引口之外部氣流之流 圖3係表示本發明之外部空 動的說明圖。 圖。圖4 圖4係表示本發明之外部氣流引導構件之概略 (A)係對設置狀態進行說明之說明圖，圖4(B)係對變 更例進行說明之說明圖。 略圖 圖5係表示本發明之 外部氣流引導構件之設置例之概 圖6係表示本發明之 内部氣流引導構件之設置例之概 略圖。 明之逆流阻礙構件時之噴射流 圖7係表示設置有本發 之流動的概略圖。 圖 圖8係表示本發明之逆流阻礙構件之形態之概略 工裝置 主要元件符號說明 噴珠加 19 201221300 10 喷珠加工室 10a 頂面 10b 側壁面 11 喷珠加工用喷嘴 12 外部空氣吸引口 12f 外部氣流整流構件 13 外部氣流引導構件 14 内部氣流引導構件 15 逆流阻礙構件 20 吸引手段（集塵裝置） 21 分離手段（旋風式分級裝置） 22 喷射材漏斗 D 導管 H 軟管 W 被加工物 20::: Become smaller. The distance may be continuously narrowed. There may be a portion having a portion that is continuously at the same distance (see FIGS. 6(A) and 6(Β). The internal airflow guiding member 14 may be widened in addition to the above shape. Any of the shape of the plate (see Fig. 6 (c)) and the shape of the unfolded rectangular plate (see Fig. 6 (D)). One part of the reflected airflow is attached to the side wall surface (10) and its attachment: The external airflow introduced by the external air suction port 12 and flowing downward along the side wall φ(10) by the external air, and the internal flow of the 201221300 airflow flowing down the side wall surface (10) by the internal friction & guiding member may be due to In order to prevent this, a counterflow obstruction member 15 is disposed on the side wall surface (10) of the bead blasting chamber 1 (). The above-mentioned counterflow obstruction member 15 is disposed in the side wall surface (10) of the bead blasting chamber 1 (). It is configured such that the portion is located further below the lower end portion of the internal airflow guiding member 14. "It is desirable that the cross-sectional area of the counterflow obstruction member 15 in the lower horizontal direction becomes larger" so as not to be blocked by the counterflow blocking member. Make the above flow down The flow of the external airflow and the internal airflow is hindered. The longitudinal section can preferably use a triangle (refer to Fig. 8(A)), a quarter circle (refer to the series II ellipse (refer to Fig. 8(C)), and a part of _ In the present embodiment, which is deformed and the upper end is an acute angle of 1 / 4 ellipse (see Fig. 8 (D)), as shown in Fig. 2, an external air suction port 12 is disposed in a portion above the bead: chamber Μ °...the external airflow that is attracted is along the side wall I:=the external air is attracted by the external airflow guiding structure; the rectangular plate is first, and the ua 6 is made such that its end is perpendicular to the top surface 10a. The sprayed material and dust adhere to the lower side wall surface (10) of the position, and the first airflow is weakened to guide the internal airflow to be bent into a position: the position airflow guide material 14 is disposed in the _ ^ The inside of the plate-shaped member is 3*M., the side of the external airflow guiding member that is retracted from the side of the external air suction port 12, and the side wall surface (10) of the external air suction port 12 is placed on the side wall surface (10). There is a vertical, illusion... so that the bottom side of the longitudinal plane and the side wall surface 10b and the side flow obstruction Above the member 15, the lower end portion of the guiding member U is further below. The above internal airflow (embodiment) 16 201221300 In Fig. 2, Fig. 2(A) shows a plan view, and Fig. 2(b) shows a right side view, Fig. 2(C) Figure 2(D) shows a cross-sectional view taken along line CC of Figure 2(b), Figure 2(E) shows a cross-sectional view taken along line DD of Figure 2(A), and Figure 2(F) shows Figure 2(A). In the cross-sectional view of the E_E line, in Fig. 2 (E) and Fig. 2 (F), the nozzle for processing beading u and the workpiece W are omitted for convenience. The bead processing chamber shown in Fig. 1 is used. Bead processing. The suction means 20 was operated, and the workpiece w (27 〇 x 28 〇 xti 钢材 steel) was sprayed with a spray material (WA #600: manufactured by Shinto Industries Co., Ltd.) for 15 minutes. Further, a window (not shown) for confirming the inside of the bead processing chamber 10 during the bead processing is disposed on the side wall surface 1b of the bead processing chamber 10, and the state of the inner wall surface during the bead processing is confirmed. After the bead processing, the deposition of the sprayed material and the dust on the inner wall surface was not confirmed. Further, in the processing of the bead blasting, the deposition of the blasting material and the dust on the inner wall surface is not confirmed. According to the present invention, the blasting material and the dust are not attached to the inner wall surface of the blast processing chamber 1 喷machining. (Modified Example) Although the nozzle for bead processing in the present embodiment has been described as a suction type, the injection material and the compressed air flow are pressurized by pressurizing the pressurizing tank filled with the injection material. The present invention can also be preferably used when it is conveyed to the bead processing nozzle and the direct injection type of 01 shot. ^In addition, in the processing of the bead processing, not only when the injection material and the compressed air are injected into the jet of the jet, but also the centrifugal bead processing device that projects the spray material by the force generated by the rotation of the impeller In the case of a device (a so-called bead blasting device), the present invention can also be preferably used. 17 201221300 In addition, the spray material used for bead processing is used in addition to the metal bead (shot, gri (j), cut wire). It is not particularly limited as long as it is a ceramic type, a resin type, or a plant type powder, and can be applied to the present invention. In the embodiment, the square outer air suction port is opposed to the side wall surface of the bead processing chamber. There are three in parallel, but the shape and the number are not limited, and can be appropriately changed. In the embodiment, the opening of the external airflow rectifying member that is not connected to the outer wall of the bead processing chamber is set upward (top) The surface direction) may be provided in the horizontal direction, and the internal airflow guiding member may be continuously bent, or may be partially straight, and the bending curvature (angle) may be changed depending on the location. The internal airflow guiding member may be a plate-shaped member that is bent into a y-shape. In this case, it is preferable to use a case where the curve is continuously curved, the portion is a straight line, and the curvature of f varies depending on the portion. As long as the components The external air suction port of the external air suction port may be a case where the external air flow rectifying member and the internal air flow guiding member are provided. In the embodiment and the embodiment, if the processing chamber is provided, the upper outer air flow guiding member may not be provided, and the above The official mp airflow and the internal airflow flow along the bead processing to the side wall surface, and the vehicle, the external airflow rectifying member', the airflow guiding member, and the upper (four) pieces, the above-mentioned internal beta obstructing member, However, it is also possible to arrange the flow of the hL and the internal airflow along the top surface of the bead processing chamber. 18 201221300 [Simplified description of the drawings] Description of the configuration of the processing apparatus FIG. 1 is a view of the present embodiment. Fig. 2 is a view showing a bead processing chamber of the embodiment. Fig. 2(b) is a view of Fig. 2(a):: an overview: an arrow view (right side view), Fig. 2 (Fig. 2 Fig. 2(a) is a view, Fig. 2, (D) is a CM: line sectional view of Fig. 2, Fig. 2 (εΠFig. 2 (Α) is a cross-sectional view, Fig. 2U) is Fig. 2 (α) ^εε line profile. The flow of the external airflow of the gas suction port is shown in Figure 3 BRIEF DESCRIPTION OF THE DRAWINGS FIG. 4 is a schematic view showing an arrangement state of an external airflow guiding member according to the present invention, and FIG. 4(B) is a modified example. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 5 is a schematic view showing an example of installation of an external airflow guiding member according to the present invention. Fig. 6 is a schematic view showing an example of installation of an internal airflow guiding member according to the present invention. Fig. 8 is a schematic view showing the flow of the present invention. Fig. 8 is a schematic view showing the form of the counterflow obstructing member of the present invention. Main components and symbols are illustrated. 19, 2011, 2013, 300, 10, 10, 10, 10, 10, 10, 10 Bead processing nozzle 12 External air suction port 12f External air flow rectifying member 13 External air flow guiding member 14 Internal air flow guiding member 15 Reverse flow blocking member 20 Suction means (dust collecting device) 21 Separating means (Cyclone classifying device) 22 Spray material funnel D conduit H hose W workpiece 20